Deleting multiple keys through one command

[Santos Das]

Hi,

I am using Redis cluster. How can I delete the multiple keys through one single command.

Any help?

[Itamar Haber]

As long as your keys are in the same hash slot, you can use `DEL` or v4's `UNLINK` regularly. If your keys belong to different slots, group them by slot and then use the same. IIRC, some Redis clients with Cluster support feature helpers for that purpose. 

--
You received this message because you are subscribed to the Google Groups "Redis DB" group.
To unsubscribe from this group and stop receiving emails from it, send an email to redis-db+unsubscribe@googlegroups.com.
To post to this group, send email to redi...@googlegroups.com.
Visit this group at https://groups.google.com/group/redis-db.
For more options, visit https://groups.google.com/d/optout.

[Santos Das]

Thank you Itamar.

Is there a way I can force the all my keys to be in same hash slot?

Also, are you aware of the client which supports this.

I am using hiredis-vip.'

Thanks, Santos

[Itamar Haber]

You can use hash tag for grouping keys in a slot - read about it at https://redis.io/topics/cluster-spec#keys-hash-tags.

I believe it was one (or both?) of the popular ones for Java - Jedis and Lettuce - but I may be mistaken.

[hva...@gmail.com]

If you're asking about ALL the keys in the database, then you can use the FLUSHDB command to delete them.  If you want to delete some keys and leave the rest in the database, then you don't want to use FLUSHDB.

[Santos Das]

Thanks Itamar.....I will look at hash tags..

On Wednesday, June 7, 2017 at 8:27:51 PM UTC+5:30, Santos Das wrote: